A Formal Defense Pact in the Indo-Pacific Is the Wrong Answer

The debate over how best to deter China in the western Pacific has reached a new level of ambition. Ely Ratner, a former senior defense official in the Biden administration, proposed a “Pacific Defense Pact” — a legally binding multilateral treaty among the United States, Japan, Australia, and the Philippines. This reflects serious concerns over China’s rise and its potential future use of force along the first island chain. The underlying diagnosis is sound: Existing U.S...